[pull] main from VirusTotal:main#237
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This change may be overreaching and I understand if it is closed. Each major Go release is supported until there are two newer major releases. Go 1.24 support ended on February 4th, 2026.
This change introduces a mechanism to detect and leverage "header constraints" derived from YARA rule conditions. These constraints, such as `uint32(0) == 0x464c457f` or `$a at 0`, specify required byte sequences or integer values at fixed offsets from the start of the file. During scanning, if the initial bytes of the data do not satisfy a pattern's header constraints, that pattern is disabled before any detailed matching attempts. This early pruning reduces redundant work and improves scan performance, particularly for files with well-defined magic bytes or headers that don't match specific rule conditions. The existing filesize bounds checks are also refactored to use this new pattern disabling mechanism for consistency and clearer logic.
* Addressed testifylint errors * Replaced deprecated ioutil.TempFile with os.CreateTemp * Formatted with gofumpt --------- Co-authored-by: zdiff <zdiff@localhost>
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